28614538 has 8 divisors (see below), whose sum is σ = 43301988. Its totient is φ = 14180544.

The previous prime is 28614529. The next prime is 28614557. The reversal of 28614538 is 83541682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19775809 + 8838729 = 4447^2 + 2973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28614497 and 28614506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63081 + ... + 63532.

Almost surely, 2^28614538 is an apocalyptic number.

28614538 is a deficient number, since it is larger than the sum of its proper divisors (14687450).

28614538 is a wasteful number, since it uses less digits than its factorization.

28614538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126728.

The product of its digits is 46080, while the sum is 37.

The square root of 28614538 is about 5349.2558360953. The cubic root of 28614538 is about 305.8643866304.

The spelling of 28614538 in words is "twenty-eight million, six hundred fourteen thousand, five hundred thirty-eight".